refactor: Refactors page directory structure

Moves page files from verbose `*_page` named directories to simpler, more organized paths.

This includes:
- Renaming top-level pages (e.g., `home_page` to `home`, `login_page` to `login`).
- Nesting related pages under common directories (e.g., `product_form_page` and `product_list_page` are now under `product/`).

The update improves project organization, reduces verbosity in file paths, and enhances overall maintainability.

lib/components/drawer_component.dart

@@ -1,6 +1,6 @@
 import 'package:barcode_scanner/backend/schema/user/user_struct.dart';
-import 'package:barcode_scanner/pages/home_page/home_page_model.dart';
-import 'package:barcode_scanner/pages/login_page/login_page_model.dart';
+import 'package:barcode_scanner/pages/home/home_page_model.dart';
+import 'package:barcode_scanner/pages/login/login_page_model.dart';
 import 'package:barcode_scanner/router/go_router_builder.dart';
 import 'package:barcode_scanner/router/go_secure_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';

lib/pages/home/home_page.dart

@@ -1,5 +1,5 @@
 import 'package:barcode_scanner/components/components.dart';
-import 'package:barcode_scanner/pages/home_page/home_page_model.dart';
+import 'package:barcode_scanner/pages/home/home_page_model.dart';
 import 'package:barcode_scanner/router/go_secure_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';
 import 'package:flutter/material.dart';

lib/pages/login/login_page.dart

@@ -1,5 +1,5 @@
 import 'package:barcode_scanner/components/primary_button_component.dart';
-import 'package:barcode_scanner/pages/login_page/login_page_model.dart';
+import 'package:barcode_scanner/pages/login/login_page_model.dart';
 import 'package:barcode_scanner/router/go_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';
 import 'package:flutter/material.dart';

lib/pages/pages.dart

@@ -1,7 +1,7 @@
-export 'home_page/home_page.dart';
-export 'login_page/login_page.dart';
-export 'product_form_page/product_form_page.dart';
-export 'scanner_page/scanner_page.dart';
-export 'splash_page/splash_page.dart';
-export 'product_list_page/product_list_page.dart';
+export 'home/home_page.dart';
+export 'login/login_page.dart';
+export 'product/product_form/product_form_page.dart';
+export 'scanner/scanner_page.dart';
+export 'splash/splash_page.dart';
+export 'product/product_list/product_list_page.dart';
 export 'profile/profile_page.dart';

lib/pages/product/product_form/product_form_page.dart

@@ -1,7 +1,7 @@
 import 'package:barcode_scanner/components/loading_progress_component.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:barcode_scanner/components/primary_button_component.dart';
-import 'package:barcode_scanner/pages/product_form_page/product_form_page_model.dart';
+import 'package:barcode_scanner/pages/product/product_form/product_form_page_model.dart';
 import 'package:barcode_scanner/router/go_secure_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';
 import 'package:flutter/material.dart';

lib/pages/product/product_list/product_list_page.dart

@@ -1,5 +1,5 @@
 import 'package:barcode_scanner/components/loading_progress_component.dart';
-import 'package:barcode_scanner/pages/product_list_page/product_list_page_model.dart';
+import 'package:barcode_scanner/pages/product/product_list/product_list_page_model.dart';
 import 'package:barcode_scanner/router/go_secure_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';
 import 'package:flutter/material.dart';

lib/pages/splash/splash_page.dart

@@ -1,5 +1,5 @@
 import 'package:barcode_scanner/components/loading_progress_component.dart';
-import 'package:barcode_scanner/pages/login_page/login_page_model.dart';
+import 'package:barcode_scanner/pages/login/login_page_model.dart';
 import 'package:barcode_scanner/router/go_router_builder.dart';
 import 'package:barcode_scanner/router/go_secure_router_builder.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';

lib/router/go_secure_router_builder.dart

@@ -1,4 +1,4 @@
-import 'package:barcode_scanner/pages/login_page/login_page_model.dart';
+import 'package:barcode_scanner/pages/login/login_page_model.dart';
 import 'package:barcode_scanner/provider_container.dart';
 import 'package:barcode_scanner/router/go_router_builder.dart';
 import 'package:barcode_scanner/pages/pages.dart';

lib/services/service_initializer.dart

@@ -1,5 +1,5 @@
 import 'package:barcode_scanner/backend/objectbox/objectbox_manager.dart';
-import 'package:barcode_scanner/pages/login_page/login_page_model.dart';
+import 'package:barcode_scanner/pages/login/login_page_model.dart';
 import 'package:barcode_scanner/provider_container.dart';
 import 'package:barcode_scanner/themes/app_theme.dart';